Perry says she was flicking through a magazine when she came across a picture of Johansson, and told her boyfriend she would ‘make out’ with the actress,

“‘I Kissed a Girl‘ was inspired when I opened up a magazine and I saw a picture of Scarlett Johansson” Perry told Steppin’ Out magazine. “I was with my boyfriend at the time, and I said to him, ‘I’m not going to lie: If Scarlett Johansson walked into the room and wanted to make out with me, I would make out with her. I hope you’re okay with that?'”

Perry’s current boyfriend is Gym Class Heroes singer Travis McCoy.

Meanwhile, Kanye West also recently told the world of his appreciation for Johansson, blogging that she’s his “favourite white girl”.